So refresh my old memory on what the ratio should be to safely run at peak hp?
Stoich is 14.7 and I am seeing max of 10.8 at WOT using the methanol......11.5 under heavy throttle.
What do you others run?
Air Fuel Ratio at WOT
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2000Silverbullet
- Retired Gearhead
- Posts: 12225
- Joined: Mon May 19, 2008 5:06 pm
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- Location: Powell River BC - 7 time WCBF Survivor
Air Fuel Ratio at WOT
2000 SSEi - SilverBullet - 78,000 kms, 4" "straight shot" custom headlight ram air inlet, TOGs, 1.9's, Lsd, 2.9-3.4"MPS 10-15 psi, Ported GenV, EGR eliminated, OR pushrods, oil volume kit, trani cooler & shift kit, Titanium retainers, 90 lb springs, 160 Stat, 42# injectors, Fuel pump voltage increase, Wideband O2, 3" to dual 2 1/2" Magnaflows, Snow Meth/water injection, after SC temp gauge, 255/50WR17, timing commander set 15-18*@WOT, 2 speed Fan over-ride, disabled DRL, Solid motor mount, Meziere Electric water pump, adjustable fuel pressure regulator, Drilled & slotted rotors/ceramics, GXP sway bars and STB, Upgraded and rebuilt transmission with ZZP 2500 rpm stall TC, Pioneer Bluetooth stereo with sub and 800 W amps, PB 13.5 quarter, (April 2014 car of the month)
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rustyroger
- Posts like an LG3
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- Location: Margate, England.
Re: Air Fuel Ratio at WOT
A bit richer is normal for WOT operation, particularly with modern adulterated gas. Running lean with methanol can wreck an engine in short order.
Roger.
Roger.
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bobtaz13
- Posts like an LG3
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- Joined: Thu May 22, 2008 4:22 am
- Year and Trim: 2001 SSEi
1991 SE - Location: Minnesota
Re: Air Fuel Ratio at WOT
I was running 11.1 at WOT, before my last tune. Now it's 12.0 or so.
2001 SSEi | Galaxy Silver | GenV supercharger P&P | Intense 3.2 MPS | Intense FWI 4"| Custom PCM | TOG Ceramic headers | Magnaflow 3" cat | 180° stat | Aeroforce scan gauge | PRJ plug wires | PRJ fuel rails | Silicone vacuum lines| AP103 plugs | 3.2 MPS | 42.5# injectors | Intense 1x cam kit | YT 1.8 Rockers | 105# springs | Meziere HD pump | N* Tb | 185mm MAF | 2" Phenolic Intercooler | Oil pressure kit | L32 short block | 5% overdrive SFI Balancer | L67 heads custom ported | EBC USR Rotors | EBC Red stuff pads | Custom HID Fog lights, with HI-beam over ride | Polyurethane motor mount | Energy Suspension end links | GXP Shocks/Struts | Custom Drop springs Front, Rear FE5 Springs | GXP Strut tower Brace | GP GXP 18x8 Rims | Polished Exhaust tips | Triple Edge High Performance Street/Strip 4T65E-HD |
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2000Silverbullet
- Retired Gearhead
- Posts: 12225
- Joined: Mon May 19, 2008 5:06 pm
- Year and Trim: 2000 SSEi, 79 Firebird, 88 Jeep, 11 Yukon Denali
- Location: Powell River BC - 7 time WCBF Survivor
Re: Air Fuel Ratio at WOT
Thanks, I was hoping you would chime in....
I must be a little richer due to the addition of methanol in my 50/50 cooling water mix.
Under heavy throttle the A/F is 11.5 - 12.0 but as soon as the juice starts to spray at 8000 hz it drops.
Are those phenolic intercooler plates still available?
I must be a little richer due to the addition of methanol in my 50/50 cooling water mix.
Under heavy throttle the A/F is 11.5 - 12.0 but as soon as the juice starts to spray at 8000 hz it drops.
Are those phenolic intercooler plates still available?
2000 SSEi - SilverBullet - 78,000 kms, 4" "straight shot" custom headlight ram air inlet, TOGs, 1.9's, Lsd, 2.9-3.4"MPS 10-15 psi, Ported GenV, EGR eliminated, OR pushrods, oil volume kit, trani cooler & shift kit, Titanium retainers, 90 lb springs, 160 Stat, 42# injectors, Fuel pump voltage increase, Wideband O2, 3" to dual 2 1/2" Magnaflows, Snow Meth/water injection, after SC temp gauge, 255/50WR17, timing commander set 15-18*@WOT, 2 speed Fan over-ride, disabled DRL, Solid motor mount, Meziere Electric water pump, adjustable fuel pressure regulator, Drilled & slotted rotors/ceramics, GXP sway bars and STB, Upgraded and rebuilt transmission with ZZP 2500 rpm stall TC, Pioneer Bluetooth stereo with sub and 800 W amps, PB 13.5 quarter, (April 2014 car of the month)
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nos4blood70
- Certified Bonneville Nut
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Re: Air Fuel Ratio at WOT
Looks spot on to me with Meth
-Car Guy Carl
"Penelope" - 2003 SLE - 250k Miles
"Sydney" - 2000 Honda S2000 - 101k miles
"Penelope" - 2003 SLE - 250k Miles
"Sydney" - 2000 Honda S2000 - 101k miles
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bobtaz13
- Posts like an LG3
- Posts: 308
- Joined: Thu May 22, 2008 4:22 am
- Year and Trim: 2001 SSEi
1991 SE - Location: Minnesota
Re: Air Fuel Ratio at WOT
This is his new version http://www.ebay.com/itm/121396442528?_t ... EBIDX%3AIT
2001 SSEi | Galaxy Silver | GenV supercharger P&P | Intense 3.2 MPS | Intense FWI 4"| Custom PCM | TOG Ceramic headers | Magnaflow 3" cat | 180° stat | Aeroforce scan gauge | PRJ plug wires | PRJ fuel rails | Silicone vacuum lines| AP103 plugs | 3.2 MPS | 42.5# injectors | Intense 1x cam kit | YT 1.8 Rockers | 105# springs | Meziere HD pump | N* Tb | 185mm MAF | 2" Phenolic Intercooler | Oil pressure kit | L32 short block | 5% overdrive SFI Balancer | L67 heads custom ported | EBC USR Rotors | EBC Red stuff pads | Custom HID Fog lights, with HI-beam over ride | Polyurethane motor mount | Energy Suspension end links | GXP Shocks/Struts | Custom Drop springs Front, Rear FE5 Springs | GXP Strut tower Brace | GP GXP 18x8 Rims | Polished Exhaust tips | Triple Edge High Performance Street/Strip 4T65E-HD |
Re: Air Fuel Ratio at WOT
looks about right to me.
Shane "RedZMonte"
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
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2000Silverbullet
- Retired Gearhead
- Posts: 12225
- Joined: Mon May 19, 2008 5:06 pm
- Year and Trim: 2000 SSEi, 79 Firebird, 88 Jeep, 11 Yukon Denali
- Location: Powell River BC - 7 time WCBF Survivor
Re: Air Fuel Ratio at WOT
Auto meter Pro comp
2000 SSEi - SilverBullet - 78,000 kms, 4" "straight shot" custom headlight ram air inlet, TOGs, 1.9's, Lsd, 2.9-3.4"MPS 10-15 psi, Ported GenV, EGR eliminated, OR pushrods, oil volume kit, trani cooler & shift kit, Titanium retainers, 90 lb springs, 160 Stat, 42# injectors, Fuel pump voltage increase, Wideband O2, 3" to dual 2 1/2" Magnaflows, Snow Meth/water injection, after SC temp gauge, 255/50WR17, timing commander set 15-18*@WOT, 2 speed Fan over-ride, disabled DRL, Solid motor mount, Meziere Electric water pump, adjustable fuel pressure regulator, Drilled & slotted rotors/ceramics, GXP sway bars and STB, Upgraded and rebuilt transmission with ZZP 2500 rpm stall TC, Pioneer Bluetooth stereo with sub and 800 W amps, PB 13.5 quarter, (April 2014 car of the month)